Question about 2004 Yamaha WR 250 F

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How to clean fork seals and change fork seacls at home

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You can clean with a strip of old 35mm film

Posted on Jul 17, 2009

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Posted on Jan 02, 2017

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Have a 1999 yamaha r6, right sided a curb to avoid a car, replaced the right fork, but now my left fork is leaking could the impact have dislodged the seal and if so can it be reseated


Hey Ronald... both fork leg seals are leaking..
Let me understand.. you replaced the entire right fork? or just the seal?. The fork legs themselves may be bent .. if the seal is leaking.. it needs to be replaced.. if it is popped loose... then you need to put a new seal in place and probably a new circlip/seal retaining ring and change the fork oil..while you have it apart, I would check the fork leg for warpage(bent)... you need to find a REAL granite SURFACE PLATE..clean it and roll your clean fork on it.. if its bent, it WILL show up..I think if its more than .001" - .0025" warped, then it needs straightening.. a roller press can do it..or replace it..

Sep 04, 2017 | Yamaha Motorcycles

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Leaking fork seal? Try this...


When forks start leaking, a large part of the time there is actually a peice of debris in the seal, not an actual damaged seal. Here is a way to clean the seals while still installed on the bike. If this doesn't work, you'll know that your seal is indeed damaged and needs replaced. If it does work, you can put a little more gas in the tank!

WIth the forks on the bike, use a flat screw driver to pry out the forks dust seal. Slide the dust seal back a ways and clean it thoroughly. There will usually be alot of gunk in there to get out. Spray it out with carb cleaner and dry with a paper towel inside and out. Now clean the recess that contains your fork seal thoroughly with carb cleaner and paper towel.

There are a few things that can be used to clean the actual fork seal. You can buy a special made piece of plastic from mc parts catalogs, use a very thin feeler gauge, or my favorite is a piece of camera film negative.

Whatever you're using, very gently insert it about 1/2 inch between the seal and the fork tube. Be careful not to damage the seal. Now, holding your cleaning tool snug against the fork leg, slide it around the fork tube while slowly pulling out to make sure the debris is pulled out of the seal instead of pushed in. As you work around the fork, your little "tool" should be gently sweeping between the seal and the fork tube, removing peices of sand and dirt. You may do this a few times if they are really dirty. Wipe everything clean and very dry and work the forks up and down to see if you've stopped the leak. If so, wipe everything down one more time, reinstall your dust seal, and your through!

If you are working on upside down forks, make sure the area at the bottom of the fork tube (next to the casting) is clean. Often times simply bottoming the suspension out can cram dirt from this area into your seals.


*Help me out. Rate me!

on Jun 12, 2010 | Motorcycles

1 Answer

Change front fork oil seals


you need to remove the front wheel then on the bottom of each fork there will be an allen bolt recessed in. slacken this then undo the large bolts at top of forks. remove the brake caliper from fork leg and tie it up, dont just suspend it by the brake line. undo the pinch bolts on the yokes and withdraw each fork leg. continue to remove the allen bolt you slackened, drain the oil out of the legs and then pull the stanchion out of the fork bottom. the seals can now be prised out from the fork bottoms and new seals pushed in. assembly is a reverse of removal

Oct 25, 2013 | 2011 Hero Honda Splendor Plus

1 Answer

HOW DO I CHANGE THE FORK SEALS ON MY 1983 HONDA VT500C


cOULD LEAKING FORK SEALS CAUSE FRONT BRAKES TO FOUL? -- YES
You shuld get a manual, you must check the surface of the fork, if there are scratches, you will destroy a new seal.

Mar 05, 2013 | 1985 Honda VT 500 C Shadow

1 Answer

Change fork seals


you need to undo the pinch bolts on the yolks and remove the front wheel & mudguard. Undo the bolys retaining the brake caliper and swing it towards the frame downtube, secure it with string. Withdraw each fork leg and clean up with a soft rag. On each leg, remove the top bolt (slowly to release spring pressure) and pour out the fork oil and discard it. Pour in a small amount of parrafin and swill it around a bit to clean out any residue. Remove the dustcap or gaiter and put it on one side. You will now see the fork oil seal. If it has a circlip then remove it, if not, then don't bother. Prise out old seal carefully making sure not to mark the soft alloy of the lower leg or the chrome on the stantion. Rub a little fork oil onto the new seal and carefully slide it over the stantion, pushing it all the way down. Use a piece of wood to firmly push the seal into the lower leg until it sits squarely and fully into place. Replace circlip if necessary and refit dust cover. Refill each fork leg with 142 ml of 10 wieght fork oil and replace top bolt. pump the leg a few times to settle the oil and then refit the legs in the reverse order of removal. When done, pump the forks a few times, go for a cuppa whilst it settles and then you are all ready to go.

Jul 02, 2011 | 1981 Yamaha XS 400 Special

1 Answer

I have a 1981 suzuki gs 400 and the gear lever seams to be sticking badly. Can't get it back into neutral ? It has been leaking but I don't know where from


Chances are strong the bike has a bent shift fork. This is a major repair requiring a complete engine tear down. As far as the leak goes, there is a shift shaft seal, drive-shaft ( sprocket shaft ) seal, Kick shaft seal. shift drum switch seal, crank shaft seals and clutch shaft seal. Also, there is the right outer case cover gasket, oil filler "O" ring seal, and the center case mating surface seal. The center case seal is actually a semi-liquid gasket compound applied to the mating surfaces prior to the center case re-assembly. The shift fork repair is not recommended for the unexperienced home mechanic. Below are the main parts if a Suzuki shift mechanism and a diagram of how the shift forks move left and right to change gears. Please rate my answer. Thanks! tombones49_15.gif

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Mar 25, 2011 | Suzuki GS 400 E Motorcycles

1 Answer

My front fork seals need replacing on my 2005 model TE450, i don't know the specifications, and exactly how much oil to use in each fork


forks need to be removed,and disasemble,and cleaned,new fork seals,reasembleb fit new seals, refit damping cartridge,fill fork with 5w fork oil upto 120mm from top,refit spring, refit fork cap

Aug 14, 2010 | Husqvarna TE 450 Motorcycles

1 Answer

I have an oil leak on the left front shock and want to konw if i can repair it myself. the oil leaks out the middel where the top half of the shock slides int the bottom half. oil seal leaking. was...


it s something you can do yourself if you're mechanically inclined and pay attention to detail. there are some special tools you need, such as a fork spring compressor, fork seal driver, and snap ring pliers if you don't have any. the internal parts in the fork must go in the same way they came out, and all parts should be cleaned prior to reassembly. you should also consider replacing the bushings along with the fork seals and dust covers. might really want to consider letting a professional do it so that way the forks still don't leak after you put in the new parts.

Jan 22, 2010 | 2008 BMW R 1200 GS Adventure

2 Answers

I have a CRF 150 F motorcycle and need to take the fork apart to


Before you have to spend money on the seal, try this.Get some camera film.You will find some around.Cut off the notched edge,cut one end at 45% so you have a piece about 4 inches long.Slide the 45% end into the fork seal and slowly work it up and down and also sideways to get it up into the fork.Once you get it in there,slowly move it up and down as you slide it all the way around the fork seal.Chances are you will FEEL some grit.Take it out and clean the film and start again.It might take 3-4 times to go all around the seal untill it's clean.This works very well and may save you from a fork seal rebuild.It costs nothing and some not so good shops do exactly this.Hope this helps you

Dec 16, 2009 | 2005 Honda CRF 150 F

2 Answers

2001 yzf426 front fork leak


Each fork has an outer dust seal, and an inner seal inside of that. Dirt gets between the seal lip and the fork slider and causes the oil to escape. The fix is to have them (Both sides) replaced. You need a fork seal driver tool (Size specific for the size of the fork) and something to measure out the oil amount. It's not an easy job, if you have never done it. Also... if the oil has never been changed, it's due.

Aug 19, 2009 | 2001 Yamaha YZ 426 F

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